Force adobe reader to open links in firefox...

every time i click on a link within the pdf, it opens a new window with Internet Explorer. this is VERY annoying as i absolutely hate IE.

on the rare occasion however, if i already have a firefox window open, when i click on a link within the pdf, is SOMETIMES opens the link with firefox.

the goal is to always get it to open links with firefox, however simply closing and reopening the pdf doesnt seem to do the job. my current default client is set to Fox, however i have no clue why it still wants to open IE instead.